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The gravitational force, F, on a rocket at a distance, r, from the center of the earth is given by where k = 1013 newton · km2. When the rocket is 10^4 km from the center of the earth, it is moving away at 0.4 km/sec. How fast is the gravitational force changing at that moment?

User Lmartens
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Answer:

Explanation:

poopy equals stinky, that's all you need to know

User Vassi
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